Full list of all 72 Fallout 76 achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 5 DLC packs containing 22 achievements.
Reach Level 100
Complete "Mistress of Mystery"
Complete "I Am Become Death"
Complete "Heart of the Enemy"
Complete "Officer on Deck"
Complete "Personal Matters"
Reach Level 50
Complete "One of Us"
Complete "Recruitment Blues"
Complete "Coming to Fruition"
Complete "Bunker Buster"
Complete "Key to the Past"
Reach Level 25
Complete "Into the Fire"
Complete "Final Departure"
Reach Level 10
Complete "Second Helpings"
Complete "First Contact"
Leave Vault 76
Kill a Wanted Player
Kill Another Player
Kill 20 Players
Win the "Breach and Clear" Event
Win the "Monster Mash" Event
Revive 20 Fallen Players
Build a C.A.M.P.
Complete "Queen of the Hunt"
Build 20 C.A.M.P. Items
Build 100 C.A.M.P. Items
Take 20 Photos
Craft 5 Pieces of Armor
Craft a Weapon
Mod 50 Weapons
Play a Holotape Game
Hack 50 Terminals
Pick 50 Locks
Fully Rank Up one Perk
Read 20 Magazines
Collect a Bobblehead
Collect 10 Bobbleheads
Win the "Scorched Earth' Event
Gather 200 Pieces of Junk
Possess 10,000 Caps
Kill 5 Giant Creatures
Be at Ground Zero of a Nuclear Blast
Join 20 Teams
Kill 300 Creatures
Complete 5 Challenges
Complete 20 Challenges
Discover 100 Locations
Complete "Buried Treasure"
Complete Sofia's story
Complete "The Elusive Crane"
Complete "All That Glitters"
Complete Beckett's story
Find the Overseer
Gain 300 gold bullion
Gain 1500 gold bullion
Become allies with Foundation
Become allies with Crater
Craft a 1 star legendary mod, a 2 star legendary mod, and a 3 star legendary mod
Complete “The Catalyst”
Earn Elder Rewards from a Daily Op
Lead and complete "Union Dues" and "From Ashes to Fire"
Kill 100 Trogs with an Auto Axe
Complete 10 Favors for people in The Whitespring Refuge
Lead and complete “Tax Evasion” and “The Most Sensational Game”
Kill 10 Lesser Devils with a melee weapon
Build 5 casino games in your CAMP
Lead and Complete "The Human Condition"
Complete "Sins of the Father"
Kill 100 Overgrown with fire